CN209308054U - A kind of outer tube prestress anchorage cable offshore wind farm single-pile foundation - Google Patents
A kind of outer tube prestress anchorage cable offshore wind farm single-pile foundation Download PDFInfo
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- CN209308054U CN209308054U CN201822112618.3U CN201822112618U CN209308054U CN 209308054 U CN209308054 U CN 209308054U CN 201822112618 U CN201822112618 U CN 201822112618U CN 209308054 U CN209308054 U CN 209308054U
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Abstract
The utility model relates to a kind of outer tube prestress anchorage cable offshore wind farm single-pile foundations, including steel pipe single pile (4), stablize guiding node (3), self-locking prestress wire and outer tube (5), stable guiding node (3) setting steel pipe single pile (4) is outside, the outer tube (5) is sheathed on steel pipe single pile (4) outside along stable guiding node (3), and outer tube (5) top diameter is less than base diameter, the self-locking prestress wire is arranged in outer tube (5) wall, self-locking prestress wire one end is anchored in seabed by self-locking manner, power transmission node (2) tensioning that the other end passes through setting at the top of steel pipe single pile (4), make steel pipe single pile (4) preloading power.Compared with prior art, the utility model has many advantages, such as that stability is good, bore diameter is smaller.
Description
Technical field
The utility model belongs to offshore wind farm single-pile foundation construction technical field, more particularly, to a kind of outer tube prestressing force
Anchor cable offshore wind farm single-pile foundation.
Background technique
Under the action of wind, unrestrained load, basis is primarily subjected to moment of flexure and cuts Oversea wind power generation structure in addition to bearing pressure
Power.Major diameter steel cylinder single-pile foundation is widely used in offshore wind farm project.But when there are the difficulty that when lithosphere, drills for foundation bottom
Greatly, need to be first with heavy caliber rock borer drilling depth up to 3 times or more apertures, then use large-scale piling machine instead and squeeze into petrosal foramen downwards, finally
Concrete perfusion.Which need to use large scale equipment, there is that energy consumption is high, high cost is insufficient, and test pile condition and true pile foundation
Plinth condition is not met.
Utility model content
The purpose of this utility model is exactly to overcome the problems of the above-mentioned prior art and to provide a kind of outer tube pre-
Stress anchor cable offshore wind farm single-pile foundation.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of outer tube prestress anchorage cable offshore wind farm single-pile foundation, including steel pipe single pile, stable guiding node, self-locking
Prestress wire and outer tube, the stable guiding node are arranged outside steel pipe single pile, and the outer tube is along the stable guiding
Node cover is set to outside steel pipe single pile, and outer tube top diameter is less than base diameter, and the self-locking prestress wire is worn
In in housing tube wall, self-locking prestress wire one end is anchored in seabed by self-locking manner, and the other end passes through steel pipe
The power transmission node tensioning being arranged at the top of single pile, makes steel pipe single pile preloading power.
Further, the self-locking prestress wire includes steel strand wires ontology and is set to steel strand wires body end
Self-locking anchor head.
Further, the stable guiding node is provided with multiple, is uniformly distributed in steel pipe single pile outer wall.
Further, multiple stable guiding nodes are divided into multilayer node layer, each node layer along steel pipe single pile by up to
Lower distribution, and the length for stablizing guiding node in each node layer from top to bottom successively increases.
Further, the through-hole for passing through the self-locking prestress wire is offered in the housing tube wall.
Further, the self-locking prestress wire is anchored in middle weathering lithosphere by self-locking manner.
Compared with prior art, the utility model have with following the utility model has the advantages that
1, for the utility model using outer tube is provided with, self-locking prestress wire is anchored to seabed by outer tube,
Compared with general single-pile foundation, the superiority of rock foundation is taken full advantage of, is bent using single pile, the combination of rock anchor cable resistance to plucking
Bending resistance is cut, and stability is good.
2, the utility model, which is provided with, stablizes guiding node, facilitates the oblique of outer tube to squeeze into, effectively improves construction efficiency.
3, the utility model bore diameter is smaller, and structure is simple, easy for construction, and time-consuming is few, can save duration and cost,
There is the basis of rock suitable for bottom.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Figure label: 1 be steel strand wires ontology, 2 be power transmission node, 3 be stablize guiding node, 4 be steel pipe single pile, 5 be shield
Casing, 6 be self-locking anchor head, 7 be sea, 8 be sea bed mud face, 9 be silt layer, 10 be strong-weathered rock rock layers, 11 be middle decomposed rock
Rock layers.
Specific embodiment
The utility model is described in detail in the following with reference to the drawings and specific embodiments.The present embodiment is with the utility model
Implemented premised on technical solution, the detailed implementation method and specific operation process are given, but the guarantor of the utility model
Shield range is not limited to the following embodiments.
As shown in Figure 1, the present embodiment provides a kind of outer tube prestress anchorage cable offshore wind farm single-pile foundation, including steel pipe list
Guiding node 3, self-locking prestress wire and outer tube 5 are stablized in stake 4, stablize guiding node 3 and are arranged outside steel pipe single pile 4, outside
Casing 5 is sheathed on outside steel pipe single pile 4 along guiding node 3 is stablized, and 5 top diameter of outer tube is less than base diameter, and outer tube 5 is opened
Equipped with through-hole, self-locking prestress wire is arranged in 5 wall of outer tube by through-hole, and self-locking prestress wire one end is logical
Cross self-locking manner and be anchored in seabed, the other end by 2 tensioning of power transmission node that is arranged at the top of steel pipe single pile 4, make steel pipe single pile 4 by
Precompression.Self-locking prestress wire includes steel strand wires ontology 1 and the self-locking anchor head 6 for being set to 1 end of steel strand wires ontology.
In the present embodiment, stablizes guiding node 3 and be provided with multiple, be uniformly distributed in 4 outer wall of steel pipe single pile.Multiple stabilizations are led
Draw node 3 to divide for multilayer node layer, each node layer is from top to bottom distributed along steel pipe single pile 4, and stablizes guiding section in each node layer
The length of point 3 from top to bottom successively increases.Outer tube 5 is sheathed on outside steel pipe single pile 4 along guiding node 3 is stablized, and keeps outer tube 5 oblique
To seabed is squeezed into, if the angle of 5 side wall of outer tube and horizontal plane can be 70-80 °.
In the present embodiment, self-locking prestress wire passes through mud silt layer 9, strong-weathered rock rock layers 10, and bottom passes through certainly
Break adrift head 6 locks in apoplexy lithosphere 11 certainly.Geological conditions according to locating for it is different and is divided into hanging section, squeezes into section and anchoring
Section, wherein hanging section is located at 8 or more sea bed mud face, squeezes into section and is located at silt layer 9, anchoring section is located at strong-weathered rock rock layers 10.
The work progress of above-mentioned outer tube prestress anchorage cable offshore wind farm single-pile foundation includes:
1, steel pipe single pile 4 is squeezed into strong-weathered rock rock layers 10, meets resistance to compression condition；
2, protecting pipe 5 is squeezed into the periphery of steel pipe single pile 4 along guiding node 3 is stablized, it is oblique to squeeze into silt layer 9, into strong
Decomposed rock rock layers 10；
3, in 5 internal drilling of protecting pipe, the enough anchorage depths of middle weathering lithosphere 11 are pierced；
4, the self-locking prestress wire comprising self-locking anchor head 6 is put into hole；
5, it constructs self-locking head and is in the milk, conserve；
6, the tensioning self-locking prestress wire at the power transmission node 2 on top makes 4 preloading power of steel pipe single pile.
The preferred embodiments of the present invention have been described in detail above.It should be appreciated that the ordinary skill people of this field
Member according to the present utility model can conceive without creative work makes many modifications and variations.Therefore, all this technology necks
Technical staff passes through logic analysis, reasoning or limited reality according to the design of the utility model on the basis of existing technology in domain
Available technical solution is tested, it all should be within the scope of protection determined by the claims.
Claims (6)
1. a kind of outer tube prestress anchorage cable offshore wind farm single-pile foundation, which is characterized in that led including steel pipe single pile (4), stabilization
Drawing node (3), self-locking prestress wire and outer tube (5), steel pipe single pile (4) are arranged outside in stable guiding node (3),
The outer tube (5) is sheathed on steel pipe single pile (4) outside along stable guiding node (3), and outer tube (5) top diameter is less than
Base diameter, the self-locking prestress wire are arranged in outer tube (5) wall, self-locking prestress wire one end
It is anchored in seabed by self-locking manner, the other end makes steel pipe by power transmission node (2) tensioning being arranged at the top of steel pipe single pile (4)
Single pile (4) preloading power.
2. outer tube prestress anchorage cable offshore wind farm single-pile foundation according to claim 1, which is characterized in that described self-locking
Formula prestress wire includes steel strand wires ontology (1) and the self-locking anchor head (6) for being set to steel strand wires ontology (1) end.
3. outer tube prestress anchorage cable offshore wind farm single-pile foundation according to claim 1, which is characterized in that the stabilization
Guiding node (3) is provided with multiple, is uniformly distributed in steel pipe single pile (4) outer wall.
4. outer tube prestress anchorage cable offshore wind farm single-pile foundation according to claim 3, which is characterized in that multiple described
Stablize guiding node (3) and be divided into multilayer node layer, each node layer is from top to bottom distributed along steel pipe single pile (4), and in each node layer
The length for stablizing guiding node (3) from top to bottom successively increases.
5. outer tube prestress anchorage cable offshore wind farm single-pile foundation according to claim 1, which is characterized in that the housing
The through-hole for passing through the self-locking prestress wire is offered in pipe (5) wall.
6. outer tube prestress anchorage cable offshore wind farm single-pile foundation according to claim 1, which is characterized in that described self-locking
Formula prestress wire is anchored in middle weathering lithosphere (11) by self-locking manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822112618.3U CN209308054U (en) | 2018-12-14 | 2018-12-14 | A kind of outer tube prestress anchorage cable offshore wind farm single-pile foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822112618.3U CN209308054U (en) | 2018-12-14 | 2018-12-14 | A kind of outer tube prestress anchorage cable offshore wind farm single-pile foundation |
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| Publication Number | Publication Date |
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| CN209308054U true CN209308054U (en) | 2019-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201822112618.3U Active CN209308054U (en) | 2018-12-14 | 2018-12-14 | A kind of outer tube prestress anchorage cable offshore wind farm single-pile foundation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114763698A (en) * | 2021-01-15 | 2022-07-19 | 中国电建集团华东勘测设计研究院有限公司 | Pre-tensioned pile anchor combined foundation for shallow covering layer seabed and construction method thereof |
-
2018
- 2018-12-14 CN CN201822112618.3U patent/CN209308054U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114763698A (en) * | 2021-01-15 | 2022-07-19 | 中国电建集团华东勘测设计研究院有限公司 | Pre-tensioned pile anchor combined foundation for shallow covering layer seabed and construction method thereof |
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